Dental extractor.



No. 876,526. PATENTED JAN. 14, 1908.

0. GHOLINSKY. DENTAL EXTRAGTOR.

APPLICATION FILED MAY 31,1907- 1n: NORRIS Pgr-rsns co., wAsnmruN, n c,

OTAKAR GHOLINSKY, OF PRAGUE, AUSTRIA-HUNGARY.

DENTAL EXTRACTOR.

Specification of Letters Patent.

.Patentecl Jan. 14, 1908.

Application filed May 31.1907- Serial No. 376.536.

To all whom it may concern.-

t? Be it known that I, OTAKAR CnoLINsxi", doctor of medicine, a subject of the Emperor of Austria-Hungary, residing at Prague, Bohemia, Austria-Hungary, have invented certain new and useful Improvements in Dental Extractors, of which the following is a specification.

My invention relates to improvements in instruments for extracting teeth, which I will proceed to describe with reference to the accompanying drawing.

Figure 1 is an end elevation of the new extractor. Fig. 2 is a side elevation of Fig.1. Fig. 3 is a side elevation of the twist-shanked member of the instrument. Fig. 4 is an end elevation of the extractor when the two members are assembled in the manner shown in Fig. 5. Fig. 5 is a side elevation of Fig. 4. Fig. 6 is a side elevation of the straight-shanked member of the instrument. Fig. 7 is a detail view showing the manner in which the operator grasps the instrument.

The improved extractor consists of two members having respectively handles 1, 2 with shanks 3, 4 projecting therefrom at a right angle. The shank 3 is straight, while the shank 4 is twisted (Figs. 3 and 6), being wound twice round the shank 3. The ends of the shanks 3, 4 present bowed jaws or beaks 5, 6 respectively, of which the jaw 5 terminates in two teeth 13, 14 and the jaw 6 in a single tooth 15. The shank 4 is provided in proximity with the handle 2 with a recess or groove 8, (Fig. 3), into which there takes the pin 9 of the shank 3 (Fig. 6). The handle 1 has an extension or heel 7. For the right half of the upper denture and the left half of the lower denture the two members are so assembled that the double-toothed jaw 5 grips the right side of the patients tooth and the single-toothed jaw 6 the left side thereof, (Figs. 1 and 2). For the left half of the upper denture and the right half of the lower denture the two members are so assembled that the double-toothed jaw ,5

while the little finger, which may find support against a finger of the operators other hand, grips the heel 7. If the handles are now pressed together, the shanks 8, 4 turn about the axis of the straight shank 3, the jaws 5, 6 gripping the patients teeth, which is thus pried out.

With the new instrument the use of a rest of any kind, bearing upon the teeth, is obviated, since the fulcrum lies outside the oral cavity.

I have, by way of example, described and illustrated a particular form of construction of my invention, but I would have it understood that I donot desire to restrict myself to the constructive details.

IVhat I claim is 1. A dental extractor, comprising, a member comprising a handle and at right angles thereto a straight shank presenting a jaw, and a complementary member comprising a handle and at right angles thereto a spirally twisted shank embracing the first shank, and also presenting a jaw, substantially as described.

2. A dental extractor, comprising, a member having a handle and at right angles thereto a straight shank presenting a jaw, and a complementary member having a handle and at right angles thereto a twisted shank adapted to receive the first said shank, and also presenting a jaw, one of said members having a projection and the other one a recess adapted to accommodate said projection, substantially as described.

3. A dental extractor comprising a member having a handle, a straight shank at a right angle thereto carrying a jaw, and a heel in continuation of the handle beyond the junction with the shank, in combination with a complementary member comprising a handle and a spirally twisted shank at a right angle thereto carrying a jaw and arranged to embrace the straight shank of the first named member, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

, OTAKAR CHOLIN SKY.

I/Vitnesses:

MrrosLAv HRUBi'I, ADoLPH FISCHER. 

